acpi
acpi is a Linux command in the System Info category, rated intermediate difficulty. Shows battery status, thermal info, and AC adapter state. The syntax is acpi [options]. It returns power/battery information. A practical example: acpi -V # All battery info acpi -t # Thermal info acpi -a # AC adapter state A close relative is uname, which displays system information (kernel name, hostname, architecture). A close relative is df, which reports disk space usage for mounted filesystems. A close relative is du, which estimates file and directory space usage. More about this category: Linux system info commands — uname, df, du, free, uptime, lscpu, and more. View system information and hardware details. Related System Info commands: uname, df, du, free, uptime, lscpu, lsusb, lspci. This page is part of the free Linux Reference documentation covering 304+ commands, each with syntax, options, practical examples, and a difficulty rating.